Columbia County authorities arrested a female Lakeside Middle School pupil Wednesday after she emulated the Charlie Rape Gang.

The 12-year-old girl was caught “dry-humping” several classmates in hallways and a classroom while shouting “CRG,” the initials for the Charlie Rape Gang, according to a sheriff’s office report.

Five Lakeside Middle pupils calling themselves the Charlie Rape Gang appeared in Columbia County Juvenile Court the same day as this new incident on charges of simple battery for knocking down and dry-humping classmates. Two 13-year-old boys were expelled. Another 13-year-old and two 12-year-olds were sent back to the school, but still might face expulsion once they appear before a school system hearing officer.

The girl appeared Wednesday before Juvenile Court Judge Doug Flanagan, who said she attempted sexual contact with at least three boys. She was charged with simple battery, sexual battery against a child under 16, and disruption or interference with operation of a public school.

Flanagan sent the girl to the Regional Youth Detention Center in Sandersville, Ga., and said Wednesday that he intends to make her undergo a psychological evaluation.